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* Merge topic 'doc_varreq'Brad King2023-03-161-11/+23
|\ | | | | | | | | | | | | | | 9e1b30121f Help:toolchain: refer to CheckSourceCompiles cf48022dc5 Help:Check*: include CMAKE_REQUIRED_* vars to dedupe Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !8300
| * Help:Check*: include CMAKE_REQUIRED_* vars to dedupescivision2023-03-141-11/+23
| | | | | | | | | | | | CMAKE_REQUIRED_FLAGS now notes that space-delimited string, not ;-list is required, which could be surprising compared to similar options that do use ;-list
* | Modules:Check,GenerateExportHeader: include only what's neededscivision2023-03-131-1/+0
|/ | | | | | GenerateExportHeader had a hidden state requirement that other modules were included first. Considering include_guard, Modules should include all they actually use.
* Modules: Do not implicitly add new functions via old Check ModulesRobert Maynard2020-10-261-2/+2
| | | | | | | | | | | | | The conversion of Check<Lang>CompilerFlag, SourceCompiles, and SourceRuns over to the new functions has the possibility of breaking projects that had functions with those existing names. To reduce the possibility of collisions we now have all the legacy code call functions that start with `cmake_`, and users will need to explicitly include the new modules to get the non-prefixed versions Fixes: #21359
* CheckCompilerFlag: unified way to check compiler flags per languageRobert Maynard2020-09-281-25/+3
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* Help: Add Sphinx 'versionadded' directives to each top-level documentKitware Robot2020-07-061-0/+2
| | | | | | | Run the `Utilities/Sphinx/update_versions.py` script to add initial markup to every top-level document and find module. Issue: #19715
* Help: Revise docs of modules AddFileDependencies..CheckFunctionExistsJoachim Wuttke (l)2018-10-191-1/+1
| | | | | | * Replace '::' by '.. code-block:: cmake' wherever it makes sense. * Convert to definition list where appropriate. * Prefer '<placeholder>' over 'placeholder'.
* Check*: Added include guardsCristian Adam2017-12-011-0/+1
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* Check*CompilerFlag: Rewrite documentation of these modulesBrad King2017-06-151-21/+30
| | | | | | | | Format with modern markup. Clarify that the setting of `CMAKE_REQUIRED_DEFINITIONS` is temporary. Add a note warning about contamination of the checks by `CMAKE_<LANG>_FLAGS`. Issue: #16973
* Simplify CMake per-source license noticesBrad King2016-09-271-16/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
* Check*CompilerFlag: Revert to previous method used to pass flags (#15641)Brad King2015-07-081-4/+4
| | | | | | | | | Since commit v3.3.0-rc1~397^2 (Check*CompilerFlag: Refactor method used to pass flags, 2015-02-24) these check modules pass the flags to the compiler front-end during linking as well as during compilation. This breaks checks for flags like '-x c++' that are meant only for the compilation step. Revert the change and add a test covering a compiler-only flag.
* Check*CompilerFlag: Refactor method used to pass flagsMark Abraham2015-02-241-4/+4
| | | | | | | Refactor the Check*CompilerFlag modules to pass the flags to Check*SourceCompiles using CMAKE_REQUIRED_FLAGS instead of CMAKE_REQUIRED_DEFINITIONS. Both end up being used, but the variable for "FLAGS" is more precise.
* CheckFortranCompilerFlag: Add module to check Fortran flag existenceNicolas Bock2015-02-051-0/+66
Copy the CheckCCompilerFlag module and replace 'C' with 'Fortran'. Also update the common patterns module to match some Fortran compiler messages.